| State: | OK |
| Type: | SH |
| Route: | 136 |
| Map Custom: | yes |
| Maint: | ODOT |
| Length Mi: | 36.2 |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | at the Texas state line |
| Junction: | in Guymon |
| Terminus B: | at the Kansas state line |
| Previous Type: | SH |
| Previous Route: | 135 |
| Next Type: | SH |
| Next Route: | 137 |
State Highway 136 (abbreviated SH-136) is a state highway in Oklahoma. It runs 36.2miles across Texas County in the Oklahoma Panhandle, from the adjoining state of Texas in the south to Kansas in the north. SH-136 does not have any letter-suffixed spur routes branching from it, however, it does have a truck route bypassing downtown Guymon.
State Highway 136 was designated as such to match the number of the Texas state highway to which it connects.[1]
SH-136 begins at the Texas state line about 20miles north of Gruver. It runs north 13miles to Guymon, where it joins US-64, US-412 and SH-3 through the city. The routes divide five miles (8 km) north of Guymon, after crossing the Beaver River, with Highway 136 running uninterrupted the remaining 18miles to the Kansas line.